Glad it’s working for you now @RogerGodfrey.
Just a quote from our engineers:
When you run
forge tunnelwe try to find an available port to connect to, but I don’t think this takes into account the user’s local network / firewall settings (e.g: if a port is free but blocked by the firewall)
We’ll aim to have more useful error messages in the upcoming versions of the CLI so it’s easier to debug these errors 
As always don’t hesitate to reach out if you have any questions or suggestions about Forge!